#1D4EC3#1D4EC3

#1D4EC3 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.9% C 0.190 H 263.5°. Best body text is #FFFFFF at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#1D4EC3
RGB	rgb(29, 78, 195)
HSL	hsl(222, 74%, 44%)
HSV	hsv(222, 85%, 76%)
CMYK	cmyk(85.1%, 60%, 0%, 23.5%)
CIE-LAB	lab(37.20, 28.80, -65.39)
CIE-LCH	lch(37.20, 71.45, 293.77°)
OKLab	oklab(46.92% -0.0215 -0.1892)
OKLCH	oklch(46.92% 0.19 263.5)
XYZ	xyz(13.0779, 9.6485, 52.7922)
Luminance	0.0965 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4EC3 #C3921D

analogous

#1DA1C3 #1D4EC3 #3F1DC3

triadic

#1D4EC3 #C31D4E #4EC31D

tetradic

#1D4EC3 #C31DA1 #C3921D #1DC33F

square

#1D4EC3 #C31DA1 #C3921D #1DC33F

split-complementary

#1D4EC3 #C33F1D #A1C31D

monochromatic

#0D2358 #15398E #1D4EC3 #3B6CE2 #7194EA

Accessibility & contrast

On white

7.17

#1D4EC3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#1D4EC3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4EC3

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4EC3	#FFFFFF	#000000	##FFFFFF
##1D4EC3	1.00	7.17	2.93	7.17
#FFFFFF	7.17	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FC7

Deuteranopia (green-blind)

#0050C1

Tritanopia (blue-blind)

#006C81

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1d4ec3;
/* rgb */ color: rgb(29, 78, 195);
/* oklch */ color: oklch(46.9% 0.190 263.5);

Tailwind

colors: {
  custom: {
    50: '#797fd6',
    500: '#1d4ec3',
    950: '#000000',
  },
}

SCSS

$custom: #1d4ec3;
$custom-light: #797fd6;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4ec3",
  "rgb": {
    "r": 29,
    "g": 78,
    "b": 195
  },
  "hsl": {
    "h": 222.289,
    "s": 74.107,
    "l": 43.922
  },
  "oklch": {
    "l": 0.46921,
    "c": 0.19046,
    "h": 263.5
  },
  "luminance": 0.0965
}

Semantic roles & 50–950 ramp

primary

#1D4EC3

secondary

#D0B36C

accent

#BA37F1

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #1D4EC3

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →